1 files changed, 0 insertions, 167 deletions
diff --git a/tools/testing/selftests/bpf/progs/test_tcp_check_syncookie_kern.c b/tools/testing/selftests/bpf/progs/test_tcp_check_syncookie_kern.c
deleted file mode 100644
index 6edebce563b5..000000000000
--- a/tools/testing/selftests/bpf/progs/test_tcp_check_syncookie_kern.c
+++ /dev/null
@@ -1,167 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-// Copyright (c) 2018 Facebook
-// Copyright (c) 2019 Cloudflare
-
-#include <string.h>
-
-#include <linux/bpf.h>
-#include <linux/pkt_cls.h>
-#include <linux/if_ether.h>
-#include <linux/in.h>
-#include <linux/ip.h>
-#include <linux/ipv6.h>
-#include <sys/socket.h>
-#include <linux/tcp.h>
-
-#include <bpf/bpf_helpers.h>
-#include <bpf/bpf_endian.h>
-
-struct {
-	__uint(type, BPF_MAP_TYPE_ARRAY);
-	__type(key, __u32);
-	__type(value, __u32);
-	__uint(max_entries, 3);
-} results SEC(".maps");
-
-static __always_inline __s64 gen_syncookie(void *data_end, struct bpf_sock *sk,
-					   void *iph, __u32 ip_size,
-					   struct tcphdr *tcph)
-{
-	__u32 thlen = tcph->doff * 4;
-
-	if (tcph->syn && !tcph->ack) {
-		// packet should only have an MSS option
-		if (thlen != 24)
-			return 0;
-
-		if ((void *)tcph + thlen > data_end)
-			return 0;
-
-		return bpf_tcp_gen_syncookie(sk, iph, ip_size, tcph, thlen);
-	}
-	return 0;
-}
-
-static __always_inline void check_syncookie(void *ctx, void *data,
-					    void *data_end)
-{
-	struct bpf_sock_tuple tup;
-	struct bpf_sock *sk;
-	struct ethhdr *ethh;
-	struct iphdr *ipv4h;
-	struct ipv6hdr *ipv6h;
-	struct tcphdr *tcph;
-	int ret;
-	__u32 key_mss = 2;
-	__u32 key_gen = 1;
-	__u32 key = 0;
-	__s64 seq_mss;
-
-	ethh = data;
-	if (ethh + 1 > data_end)
-		return;
-
-	switch (bpf_ntohs(ethh->h_proto)) {
-	case ETH_P_IP:
-		ipv4h = data + sizeof(struct ethhdr);
-		if (ipv4h + 1 > data_end)
-			return;
-
-		if (ipv4h->ihl != 5)
-			return;
-
-		tcph = data + sizeof(struct ethhdr) + sizeof(struct iphdr);
-		if (tcph + 1 > data_end)
-			return;
-
-		tup.ipv4.saddr = ipv4h->saddr;
-		tup.ipv4.daddr = ipv4h->daddr;
-		tup.ipv4.sport = tcph->source;
-		tup.ipv4.dport = tcph->dest;
-
-		sk = bpf_skc_lookup_tcp(ctx, &tup, sizeof(tup.ipv4),
-					BPF_F_CURRENT_NETNS, 0);
-		if (!sk)
-			return;
-
-		if (sk->state != BPF_TCP_LISTEN)
-			goto release;
-
-		seq_mss = gen_syncookie(data_end, sk, ipv4h, sizeof(*ipv4h),
-					tcph);
-
-		ret = bpf_tcp_check_syncookie(sk, ipv4h, sizeof(*ipv4h),
-					      tcph, sizeof(*tcph));
-		break;
-
-	case ETH_P_IPV6:
-		ipv6h = data + sizeof(struct ethhdr);
-		if (ipv6h + 1 > data_end)
-			return;
-
-		if (ipv6h->nexthdr != IPPROTO_TCP)
-			return;
-
-		tcph = data + sizeof(struct ethhdr) + sizeof(struct ipv6hdr);
-		if (tcph + 1 > data_end)
-			return;
-
-		memcpy(tup.ipv6.saddr, &ipv6h->saddr, sizeof(tup.ipv6.saddr));
-		memcpy(tup.ipv6.daddr, &ipv6h->daddr, sizeof(tup.ipv6.daddr));
-		tup.ipv6.sport = tcph->source;
-		tup.ipv6.dport = tcph->dest;
-
-		sk = bpf_skc_lookup_tcp(ctx, &tup, sizeof(tup.ipv6),
-					BPF_F_CURRENT_NETNS, 0);
-		if (!sk)
-			return;
-
-		if (sk->state != BPF_TCP_LISTEN)
-			goto release;
-
-		seq_mss = gen_syncookie(data_end, sk, ipv6h, sizeof(*ipv6h),
-					tcph);
-
-		ret = bpf_tcp_check_syncookie(sk, ipv6h, sizeof(*ipv6h),
-					      tcph, sizeof(*tcph));
-		break;
-
-	default:
-		return;
-	}
-
-	if (seq_mss > 0) {
-		__u32 cookie = (__u32)seq_mss;
-		__u32 mss = seq_mss >> 32;
-
-		bpf_map_update_elem(&results, &key_gen, &cookie, 0);
-		bpf_map_update_elem(&results, &key_mss, &mss, 0);
-	}
-
-	if (ret == 0) {
-		__u32 cookie = bpf_ntohl(tcph->ack_seq) - 1;
-
-		bpf_map_update_elem(&results, &key, &cookie, 0);
-	}
-
-release:
-	bpf_sk_release(sk);
-}
-
-SEC("tc")
-int check_syncookie_clsact(struct __sk_buff *skb)
-{
-	check_syncookie(skb, (void *)(long)skb->data,
-			(void *)(long)skb->data_end);
-	return TC_ACT_OK;
-}
-
-SEC("xdp")
-int check_syncookie_xdp(struct xdp_md *ctx)
-{
-	check_syncookie(ctx, (void *)(long)ctx->data,
-			(void *)(long)ctx->data_end);
-	return XDP_PASS;
-}
-
-char _license[] SEC("license") = "GPL";